Created fixture initialization task and task result classes.

AFDP-94
Created a task result handler for fixture initialization.

AFDP-94
Updated the task enroller to handle fixture initialization.

AFDP-94
Updated fixture service to use new task enroller rather than a mock.

AFDP-94
Created a test notification listener for integration testing.

AFDP-94
Removed some unneeded modules and reference to them in the wiring.
Updated integration tests for the new service workflow.